A Saudi prisoner at the Guantanamo Bay detention center who was suspected of trying to join the 9/11 hijackers has been sent back to his home country for treatment for mental illness, the Department of Defense said Monday.
Mohammad Ahmad al-Qahtani was flown back to Saudi Arabia, to a treatment facility, from the U.S. base in Cuba after a review board including military and intelligence officials concluded he could be safely released after 20 years in custody.
